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      <title>OpenLayers Image Layer Example</title>
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    <script src="../lib/OpenLayers.js"></script>
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        var map;
        function init(){
            map = new OpenLayers.Map('map');

            var options = {numZoomLevels: 3};

            var graphic = new OpenLayers.Layer.Image(
                                'City Lights',
                                'http://earthtrends.wri.org/images/maps/4_m_citylights_lg.gif',
                                new OpenLayers.Bounds(-180, -88.759, 180, 88.759),
                                new OpenLayers.Size(580, 288),
                                options);

            var jpl_wms = new OpenLayers.Layer.WMS( "NASA Global Mosaic",
                "http://t1.hypercube.telascience.org/cgi-bin/landsat7", 
                {layers: "landsat7"}, options);

            map.addLayers([graphic, jpl_wms]);
            map.addControl(new OpenLayers.Control.LayerSwitcher());
            map.zoomToMaxExtent();
        }
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    <h1 id="title">Image Layer Example</h1>

    <div id="tags"></div>

    <p id="shortdesc">
        Demonstrate a single non-tiled image as a selectable base layer.
    </p>

    <div id="map" class="smallmap"></div>

    <div id="docs">
        <p class="caption">
            The "City Lights" layer above is created from a single web accessible
            image.  If you construct it without any resolution related options,
            the layer will be given a single resolution based on the extent/size.
            Otherwise, it behaves much like a regular layer.  This is primarily
            intended to be used in an overview map - where another layer type
            might not make a good overview.
        </p>
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